100 
POPULAR SCIENCE REVIEW. 
METALLURGY, MINERALOGY, AND MINING. 
Death of Gustav Rose. — This distinguished mineralogist has lately died 
at Berlin, in the 76th year of his age. In him Germany and the world 
have lost a wise and noble man, — conceded by all to be the first in science 
among the learned men of Germany. At first devoting himself to engi- 
• neering, he subsequently gave all his time to scientific pursuits, and in 1823 
took up his residence in Berlin. In 1826 he became Professor of Miner- 
alogy in that University, and, after the death of "Weiss, Director of the 
Royal Mineralogical Museum. He travelled extensively in Scandinavia, 
England and Scotland, Italy and Sicily, France and Austria. In 1829 he 
made with Humboldt and Ehrenbeig the famous tour to the Ural and Altai 
Mountains and the Caspian Sea, and beyond to the borders of China, a 
journey which first made known the mineralogical resources of the extensive 
Russian Empire. His researches on his native soil were confined to the 
Silesian Mountains. He devoted himself to the study of meteorites, those 
wonderful bodies which reach the earth from stellar space. With his keen 
penetration he discovered the structure of iron meteorites, and the mineral 
components of the stony ones ; and studied the striking differences between 
rock-making in a cosmic atom, and in the solid crust of the earth . — u Geo- 
logical Magazine.” 
Death of Professor Breithaupt of Freiberg. — Not long after the death of 
Gustav Rose the science of mineralogy experienced, says the u Academy,” 
Nov. 1st, another great loss by the death of the venerable Prof. Breithaupt 
of Freiberg, which took place on the 22nd of October. Johann August 
Friedrich Breithaupt was born at Probstzella, near Saalfeld, in May 1791, 
and so far back as 1813 already held an appointment in the institution, his 
connection with which has now, after a lapse of sixty years, been severed 
by his death. First he was appointed Edelstein-Inspector and Hiilfslehrer 
in the Bergacademie, and in 1827 was created Professor of Mineralogy in 
that school. His first work was a “ Kurze Charakteristik ” of the mineral 
system, which appeared in 1820, followed by a u Vollstandige Charakter- 
istik ” that passed through two editions. His chief production, however, 
was the u Handbook of Mineralogy,” which appeared in three volumes, 
between the years 1836 and 1847. His memoirs on minerals, written from 
time to time during more than half a century, from the first, that appeared 
in 1855, on genuine crystals, to the one dictated with difficulty through 
failing sight and increasing infirmity, and published in the 11 Journal fur 
praktische Chemie,” at the commencement of the present year, contain vast 
stores of results of the highest value for the advancement of mineralogical 
science. 
Metalliferous Veins in Cornwall. — This subject is a curious one for a 
French metallurgist to take up. M. Moissenet draws the following conclu- 
sions from his observations : — The parts of the vein whose incline approaches 
most nearly to a vertical direction are the most productive. The rich 
portions are commonly, in Cornwall, enclosed in a gangue of moderate 
hardness. Most frequently the metalliferous bands or columns incline in the 
same direction as the gangue. The rich portions are frequently disposed 
